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Massachusetts · NTEE D

Animal-Related Nonprofits in Massachusetts

Givalgo Discover indexes 50 active animal-related nonprofits headquartered in Massachusetts. The list below is sorted by reported revenue on the most recent Form 990 indexed for each organisation.

Top 50 by reported revenue

From the most recent Form 990 indexed for each organisation. Click an org for full diligence detail.

#OrganisationRevenue
1MASSACHUSETTS SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS
EIN 04-2103597
$144.8M
2NEW ENGLAND AQUARIUM CORPORATION
EIN 04-2297514
$54.6M
3INTERNATIONAL FUND FOR ANIMAL WELFARE INC
EIN 31-1594197
$44.5M
4COMMONWEALTH ZOOLOGICAL CORPORATION
EIN 04-3129124
$34.4M
5NEW ENGLAND WILDLIFE CENTER
EIN 04-2907561
$30.8M
6ANIMAL RESCUE LEAGUE OF BOSTON
EIN 04-2103714
$21.9M
7SECOND CHANCE ANIMAL SERVICES INC
EIN 04-3490671
$9.7M
8ECOHEALTH ALLIANCE INC
EIN 31-1726494
$8.0M
9DAKIN PIONEER VALLEY HUMANE SOCIETYINC
EIN 20-5318898
$5.5M
10NEW ENGLAND REGIONAL FISHERY MANAGEMENT COUNCIL
EIN 04-2607425
$5.3M
11NANTUCKET SAFE HARBOR FOR ANIMALS INC
EIN 45-3827775
$4.2M
12BERKSHIRE HUMANE SOCIETY INC
EIN 04-3148018
$3.2M
13FOSTER PARROTS LTD
EIN 04-3458267
$2.8M
14FOUR PAWS INTERNATIONAL INC
EIN 27-4352918
$2.5M
15BAYPATH HUMANE SOCIETY OF HOPKINTON INC
EIN 04-2625753
$2.4M
16AMBOSELI TRUST FOR ELEPHANTS
EIN 20-1321920
$1.9M
17VESTED INTEREST IN K9S INC
EIN 27-0872182
$1.8M
18AMERICAN FONDOUK MAINTENANCE COMMITTEE INC
EIN 04-6043108
$1.8M
19BUDDY DOG HUMANE SOCIETY INC
EIN 04-2386196
$1.7M
20BUTTONWOOD PARK ZOOLOGICAL SOCIETY INC
EIN 04-2661467
$1.7M
21SWEET PAWS RESCUE
EIN 27-4638058
$1.7M
22ANIMAL SHELTER INC
EIN 04-3236868
$1.6M
23YANKEE GOLDEN RETRIEVER RESCUE INC
EIN 04-2857191
$1.5M
24GORILLA REHABILITATION AND CONSERVATION EDUCATION GRACE CENTE
EIN 46-2308758
$1.4M
25INTERNATIONAL ANIMAL RESCUE US
EIN 54-2044674
$1.4M
26CAPE ANN ANIMAL AID ASSOCIATION INC
EIN 04-2374914
$1.4M
27HARMONY FUND INC
EIN 27-1293736
$1.4M
28NEW ENGLAND ANTI-VIVISECTION SOCIETY
EIN 04-2104756
$1.4M
29FOREST PARK ZOOLOGICAL SOCIETY INC
EIN 04-6145635
$1.3M
30WORCESTER ANIMAL RESCUE LEAGUE
EIN 04-2133247
$1.2M
31MERRIMACK RIVER FELINE RESCUE SOCIETY INC
EIN 04-3172322
$1.2M
32HUMANE SOCIETY-LOWELL
EIN 04-2104400
$1.2M
33ELLEN M GIFFORD SHELTERING HOME CORPORATION
EIN 04-2239741
$1.1M
34BIRDSCARIBBEAN
EIN 03-0455080
$984K
35BENEATH THE WAVES INC
EIN 46-3461387
$974K
36GUNUNG PALUNG ORANGUTAN CONSERVATION PROGRAM INC
EIN 26-1380932
$922K
37LAST HOPE K9 RESCUE
EIN 45-4862800
$888K
38WELLFLEET SHELLFISH PROMOTION AND TASTING INC
EIN 43-1973181
$883K
39WILD CARE INC
EIN 04-3234724
$867K
40PET PARTNERS INC
EIN 04-3540580
$847K
41WORLD FEDERATION FOR ANIMALS INC
EIN 04-3431930
$823K
42COMMUNITIES LIVING AMONG WILDLIFE SUSTAINABLY CONSERVANCY INC
EIN 47-5208674
$809K
43NEWHOUSE WILDLIFE RESCUE CORPORATION
EIN 83-2791315
$800K
44HUMANE SOCIETY & SHELTER SOUTHCOAST
EIN 04-2103712
$790K
45AFRICAN AQUATIC CONSERVATION FUND INC
EIN 47-2592641
$778K
46SAVE A DOG INC
EIN 04-3476937
$767K
47FOREVER PAWS ANIMAL SHELTER
EIN 04-3280557
$767K
48AFRICAN ELEPHANT CONSERVATION TRUST
EIN 23-6610636
$762K
49SHULTZS GUEST HOUSE SERVICES INC
EIN 47-2697761
$749K
50PAW SAFE ANIMAL RESCUE INC
EIN 04-3281587
$744K

Frequently asked questions about animal-related nonprofits in Massachusetts

Answers compiled from the IRS Form 990, BMF, Pub 78, and Auto-Revocation List.

How many animal-related nonprofits operate in Massachusetts?
Every IRS-registered animal-related nonprofit in Massachusetts appears in the Givalgo Discover index. The top 50 by reported revenue are listed on this page; the full set is searchable on discover.givalgo.ai.
What's the largest animal-related nonprofit in Massachusetts?
The single largest animal-related nonprofit in Massachusetts by reported total revenue is shown at the top of the list on this page, sourced from each organisation's most recent IRS Form 990 filing.
How do I vet a animal-related nonprofit in Massachusetts before donating?
Use Givalgo Discover's free profile for the organisation: it cross-references the IRS Auto-Revocation List, IRS Publication 78, and the IRS Business Master File, and exposes the latest Form 990 financials and governance signals on a single page.
Are donations to Massachusetts animal-related nonprofits tax-deductible?
Federal deductibility is determined by IRS Publication 78 status, not state location. Donations to a Pub 78-listed animal-related nonprofit in Massachusetts are tax-deductible at the federal level; Massachusetts state tax treatment may differ.
Where do animal-related nonprofits in Massachusetts file their Form 990?
All US tax-exempt organisations file Form 990 with the IRS at the federal level — there is no state-specific filing for the federal exemption itself. Massachusetts state charity registration is a separate state-level requirement.